uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/development/python-modules/logilab_astng/default.nix

@@ -0,0 +1,24 @@
+{ lib
+, buildPythonPackage
+, fetchurl
+, logilab_common
+}:
+
+buildPythonPackage rec {
+  pname = "logilab-astng";
+  version = "0.24.3";
+
+  src = fetchurl {
+    url = "http://download.logilab.org/pub/astng/${pname}-${version}.tar.gz";
+    sha256 = "0np4wpxyha7013vkkrdy54dvnil67gzi871lg60z8lap0l5h67wn";
+  };
+
+  propagatedBuildInputs = [ logilab_common ];
+
+  meta = with lib; {
+    homepage = "https://www.logilab.org/project/logilab-astng";
+    description = "Python Abstract Syntax Tree New Generation";
+    license = licenses.lgpl2;
+  };
+
+}